Thalictrum alpinum, Helianthemum eanum, Dryas octopetala, Epilobium 
alsinifolium, and Tofieldia palustris. 
Reversing the order of the districts we begin with — 
No. IX.— WEST TEES. 
Drainage. — Taking its rise on the slope of Cross fell in Cumberland, 
augmented by the drainage of the dreary moors of Milburn and Har- 
thorpe, after spreading out into a tarn-like expansion, called the Weal, 
and thus forming, for several miles, the boundary between Westmoreland 
and Durham, the Tees introduces itself to Yorkshire, thundering over an 
irregular series of basaltic cliffs, two hundred feet in height, called the 
Caldron Snout ; and forms for the remainder of its course the northern 
limit of the county. Below the waterfall, it is joined by the Maizebeck, 
and flows towards the east in a broad rocky channel, margined on the 
south by the scars of Cronkley, and on the north by Falcon Clints : and 
after a few miles, it falls over a perpendicular cliff of greenstone 69 feet 
in height, forming the High Force. Thence descending rapidly in a more 
confined bed, it runs through a rich and well known botanical district, 
under the bridges of Lower Cronkley and Wince, and advances for about 
the next twelve miles in a south-eastern direction. Till its junction with 
the Lune, opposite Middleton, a range of cliffs, gradually lessening in 
height, runs parallel with it at some distance. Afterwards, the hills recede 
and decrease in altitude : and the river flows past the villages of Romald- 
kirk, Cotherstone, and Lartington, and is joined at intervals by the parallel 
streams which drain respectively Balderdale, Grizedale, and Deepdale. 
Below Barnard Castle it receives the Greta from the forest of Stainmoor ; 
and thence, entering the central vale, it flow's with many sinuosities 
towards the east, the district which it drains being considerably narrowed 
in breadth. 
Surface. — From the summit of Micklefell, 2580 feet in altitude, the forest 
of Lune slopes gradually towards the east to Cronkley Scarrs ; and is 
principally included in the arctic region. The moors to the south are 
considerably less elevated, and the highest peaks do not exceed 1860 and 
1448 feet. The surface ascends to the line of watershed between Greta- 
dale and Arkendale, where Hoove and Baxton Nab nearly attain the upper 
